阅读理解
This is the map of Cindy's neighborhood.Her home is on Station Road near the train station.Every day she rides her bike to school.Now Cindy is in the position(位置) of the star.
根据材料内容判断正误。
A. B. C. D.
a. warm b. hot c. cool d. cold
为探究唾液对淀粉的消化作用,小悦设置了如图实验装置,已知A试管实验材料是:淀粉液+唾液,则B试管实验材料为( )